D1313331322132333132333132312312323331323223313113313233313231133132333121   >>    D131333132213233313233313231231232333132322331311331323331323113313233312   <<    D1313331322132333132333132312312323331323223313113313233313231133132333123   >>      D1313331322132333132333132312312323331323223313113313233313231133132333122   >>